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| author |   Chandrakanth Patil <chandrakanth.patil@broadcom.com> | 2019-06-25 16:34:34 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2019-06-27 00:07:36 -0400 |
| commit | f39e5e52c5b5407173d87b03a6385fbe6ccf1026 (patch) | |
| tree | 551a5c4afa5f47c2d8628cec0fef326f9069af44 /drivers/scsi/megaraid/megaraid_sas.h | |
| parent | scsi: megaraid_sas: Set affinity for high IOPS reply queues (diff) | |
| download | linux-dev-f39e5e52c5b5407173d87b03a6385fbe6ccf1026.tar.xz linux-dev-f39e5e52c5b5407173d87b03a6385fbe6ccf1026.zip | |
scsi: megaraid_sas: Use high IOPS queues based on IO workload
The driver will use round-robin method for IO submission in batches within
the high IOPS queues when the number of in-flight ios on the target device
is larger than 8. Otherwise the driver will use low latency reply queues.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.h')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index 02e6e15d8c2a..3f4cb52177f6 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -2253,6 +2253,8 @@ enum MR_PD_TYPE { /*Aero performance parameters*/ #define MR_HIGH_IOPS_QUEUE_COUNT 8 +#define MR_DEVICE_HIGH_IOPS_DEPTH 8 +#define MR_HIGH_IOPS_BATCH_COUNT 16 struct megasas_instance { @@ -2362,6 +2364,7 @@ struct megasas_instance { atomic_t ldio_outstanding; atomic_t fw_reset_no_pci_access; atomic64_t total_io_count; + atomic64_t high_iops_outstanding; struct megasas_instance_template *instancet; struct tasklet_struct isr_tasklet; |